/*
 * Copyright 2011 Witoslaw Koczewsi <wi@koczewski.de>, Artjom Kochtchi
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero
 * General Public License as published by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 */
package scrum.server.pr;

import ilarkesto.base.Utl;
import ilarkesto.core.time.DateAndTime;
import scrum.client.common.LabelSupport;
import scrum.client.common.ReferenceSupport;
import scrum.server.admin.User;
import scrum.server.common.Numbered;

public class BlogEntry extends GBlogEntry implements Numbered, ReferenceSupport, LabelSupport, Comparable<BlogEntry> {

	@Override
	protected DateAndTime prepareDateAndTime(DateAndTime value) {
		if (value == null && isPublished()) return getDateAndTime();
		return super.prepareDateAndTime(value);
	}

	public String getUrl() {
		String url = getProject().getHomepageUrl();
		if (url == null) return null;
		if (!url.endsWith("/")) url += "/";
		url += getReference() + ".html";
		return url;
	}

	@Override
	public String getLabel() {
		return getTitle();
	}

	@Override
	public boolean isVisibleFor(User user) {
		return getProject().isVisibleFor(user);
	}

	public String getReferenceAndLabel() {
		return getReference() + " " + getTitle();
	}

	@Override
	public String getReference() {
		return scrum.client.pr.BlogEntry.REFERENCE_PREFIX + getNumber();
	}

	@Override
	public void updateNumber() {
		if (getNumber() == 0) setNumber(getProject().generateBlogEntryNumber());
	}

	@Override
	public void ensureIntegrity() {
		super.ensureIntegrity();
		updateNumber();
		if (isPublished() && !isDateAndTimeSet()) setDateAndTime(DateAndTime.now());
	}

	@Override
	public int compareTo(BlogEntry other) {
		return Utl.compare(getDateAndTime(), other.getDateAndTime()) * -1;
	}

	@Override
	public String toString() {
		return getReferenceAndLabel();
	}
}